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1bfda055 | 1 | /** @file |
2 | * | |
3 | * Copyright (c) 2011, ARM Limited. All rights reserved. | |
4 | * | |
5 | * This program and the accompanying materials | |
6 | * are licensed and made available under the terms and conditions of the BSD License | |
7 | * which accompanies this distribution. The full text of the license may be found at | |
8 | * http://opensource.org/licenses/bsd-license.php | |
9 | * | |
10 | * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
11 | * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
12 | * | |
13 | **/ | |
14 | ||
15 | #include "BdsInternal.h" | |
16 | ||
17 | ||
18 | EFI_STATUS BdsLoadFileFromMemMap ( | |
19 | IN EFI_HANDLE Handle, | |
20 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath, | |
21 | OUT BDS_FILE *File | |
22 | ) { | |
23 | EFI_DEVICE_PATH_PROTOCOL *LastDevicePath; | |
24 | ||
25 | if ((File == NULL) || (DevicePath == NULL) || (IsDevicePathEnd (DevicePath))) { | |
26 | return EFI_INVALID_PARAMETER; | |
27 | } | |
28 | ||
29 | // Check if the last node of the device Path is a Memory Map Device Node | |
30 | LastDevicePath = DevicePath; | |
31 | DevicePath = NextDevicePathNode(DevicePath); | |
32 | while (!IsDevicePathEnd (DevicePath)) { | |
33 | LastDevicePath = DevicePath; | |
34 | DevicePath = NextDevicePathNode(DevicePath); | |
35 | } | |
36 | if ((LastDevicePath->Type != HARDWARE_DEVICE_PATH) || (LastDevicePath->SubType != HW_MEMMAP_DP)) { | |
37 | return EFI_UNSUPPORTED; | |
38 | } | |
39 | ||
40 | File->Type = BDS_FILETYPE_MEM; | |
41 | File->File.Mem.MemoryType = ((MEMMAP_DEVICE_PATH*)LastDevicePath)->MemoryType; | |
42 | File->File.Mem.StartingAddress = ((MEMMAP_DEVICE_PATH*)LastDevicePath)->StartingAddress; | |
43 | File->File.Mem.EndingAddress = ((MEMMAP_DEVICE_PATH*)LastDevicePath)->EndingAddress; | |
44 | ||
45 | return EFI_SUCCESS; | |
46 | } | |
47 | ||
48 | EFI_STATUS BdsCopyRawFileToRuntimeMemoryMemMap( | |
49 | IN BDS_MEM_FILE *MemFile, | |
50 | OUT VOID **FileImage, | |
51 | OUT UINTN *FileSize | |
52 | ) { | |
53 | UINTN Size; | |
54 | VOID* Image; | |
55 | ||
56 | Size = MemFile->EndingAddress - MemFile->StartingAddress; | |
57 | ||
58 | if ((Size == 0) || (FileImage == NULL)) { | |
59 | return EFI_INVALID_PARAMETER; | |
60 | } | |
61 | if (FileSize != NULL) { | |
62 | *FileSize = Size; | |
63 | } | |
64 | ||
65 | Image = AllocateRuntimePool(Size); | |
66 | if (Image == NULL) { | |
67 | return EFI_OUT_OF_RESOURCES; | |
68 | } | |
69 | ||
70 | *FileImage = CopyMem(Image,(CONST VOID*)(UINTN)MemFile->StartingAddress,Size); | |
71 | ||
72 | return EFI_SUCCESS; | |
73 | } |